Backing up and restoring NAS file servers using NDMP

After you configure Tivoli® Storage Manager for NDMP operations, you are ready to begin using NDMP.

Procedure

Use either a client interface or an administrative interface to perform a file system image backup. For example, to use the Windows backup-archive client interface to back up a file system that is named /vol/vol1 on a NAS file server that is named NAS1, issue the following command:

dsmc backup nas -nasnodename=nas1 {/vol/vol1}

For more information about the command, see Backup Image.

Tip: Whenever you use the client interface, you are asked to authenticate yourself as a Tivoli Storage Manager administrator before the operation can begin. The administrator ID must have at least client owner authority for the NAS node.

You can complete the same backup operation with a server interface. For example, from the administrative command-line client, back up the file system that is named /vol/vol1 on a NAS file server that is named NAS1, by issuing the following command:

backup node nas1 /vol/vol1

Restriction: The BACKUP NAS and BACKUP NODE commands do not include snapshots. To back up snapshots, see Backing up and restoring with snapshots.

You can restore the image by using either interface. Backups are identical whether they are backed up using a client interface or a server interface. For example, suppose that you want to restore the image that is backed up in the previous examples. For this example, the file system that is named /vol/vol1 is being restored to /vol/vol2. Restore the file system with the following command, issued from a Windows backup-archive client interface:

dsmc restore nas -nasnodename=nas1 {/vol/vol1} {/vol/vol2}

You can choose to restore the file system by using a server interface. For example, to restore the file system name /vol/vol1 to file system /vol/vol2, for a NAS file server that is named NAS1, enter the following command:

restore node nas1 /vol/vol1 /vol/vol2

You can restore data from one NAS vendor system to another NAS vendor system when you use the NDMPDUMP data format. However, you must either verify compatibility between systems or maintain a separate storage pool for each NAS vendor.